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Hollandt, J.; Schühle, U.; Curdt, W.; Dammasch, I. E.; Lemaire, P.; Wilhelm, K.: Solar radiometry with the telescope and vacuum-ultraviolet spectrometer SUMER on the Solar and Heliospheric Observatory (SOHO). Metrologia 35, pp. 671 - 675 (1998)

Hussey, G. C.; Schlegel, K.; Haldoupis, C.: Simultaneous 50-MHz coherent backscatter and digital ionosonde observations in the midlatitude E region. Journal Geophysical Research 103, pp. 6991 - 7001 (1998)

Innes, D. E.; Curdt, W.; Dwivedi, B. N.; Wilhelm, K.: Ultraviolet observations of a dynamic event in the solar corona. Solar Physics 181, pp. 103 - 112 (1998)

Ip, W.-H.; Jorda, L.: Can the sodium tail of comet Hale-Bopp have a dust-impact origin? Astrophysical Journal 496, pp. L47 - L49 (1998)

Ip, W.-H.; Rinnert, K.: Jupiter und die Galileischen Monde. Physik in unserer Zeit 29 (5), pp. 190 - 197 (1998)

Ip, W.-H.; Williams, D. J.; McEntire, R. W.; Mauk, B. H.: Ion sputtering and surface erosion at Europa. Geophysical Research Letters 25, pp. 829 - 832 (1998)

Ipavich, F. M.; Galvin, A. B.; Lasley, S. E.; Paquette, J. A.; Hefti, S.; Reiche, K.-U.; Coplan, M. A.; Gloeckler, G.; Bochsler, P.; Hovestadt, D. et al.; Grünwaldt, H.; Hilchenbach, M.; Gliem, F.; Axford, W. I.; Balsiger, H.; Bürgi, A.; Geiss, J.; Hsieh, K. C.; Kallenbach, R.; Klecker, B.; Lee, M. A.; Managadze, G. G.; Marsch, E.; Möbius, E.; Neugebauer, M.; Scholer, M.; Verigin, M. I.; Wilken, B.; Wurz, P.: Solar wind measurements with SOHO: The CELIAS/MTOF proton monitor. Journal Geophysical Research 103, pp. 17205 - 17213 (1998)

Jammalamadaka, S.; Inhester, B.; Marsch, E.; Grünwaldt, H.: Alfvén vortices in multi-ion plasmas. Physica Scripta T75, pp. 150 - 152 (1998)

Jin, S. P.; Ma, N.; Zong, Q.-G.; Wilken, B.: A simulation study of multiple plasmoids in the magnetotail during substorm event (II). ACTA Geophysica Sinica 16, pp. 283 - 291 (1998)

Jockers, K.; Credner, T.; Bonev, T.: Water ions, dust and CN in comet 46P/Wirtanen. Astronomy and Astrophysics 335, pp. L56 - L59 (1998)

Judge, P. G.; Hansteen, V.; Wikstøl, Ø.; Wilhelm, K.; Schühle, U.: Evidence in support of the ``nanoflare'' picture of coronal heating from SUMER data. Astrophysical Journal 502, pp. 981 - 996 (1998)

Kallenbach, R.; Geiss, J.; Ipavich, F. M.; Gloeckler, G.; Bochsler, P.; Gliem, F.; Hilchenbach, M.; Hovestadt, D.: Isotopic composition of solar wind nitrogen: First in-situ determination by CELIAS/MTOF on board SOHO. Astrophysical Journal 507, pp. L185 - 188 (1998)

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Kan, J. R.; Baumjohann, W.; Coroniti, F. V.; Birn, J.; Vasyliūnas, V. M.; Kennel, C. F.; Lui, A. T. Y.; Lyons, L. R.; Kamide, Y.; Baker, D. N. et al.; Hesse, M.; Akasofu, S.-I.: Substorm research moves toward a unifying framework. EOS, Trans. AGU 79, pp. 329 - 331 (1998)

Keppler, E.: Ulysses finished its first revolution around the Sun. Naturwissenschaften 85, pp. 467 - 473 (1998)

Keppler, E.: What causes the variations of the peak intensity of CIR accelerated energetic ion fluxes? Annales Geophysicae 16 (12), pp. 1552 - 1556 (1998)

Keppler, E.: The acceleration of charged particles in Corotating Interaction Regions (CIR) - A review with particular emphasis on the Ulysses mission. Surveys in Geophysics 19, pp. 211 - 278 (1998)

Keppler, E.: Weltraumtechnik im Dienste der Umwelt. Bessere Umwelt 8 (2), pp. 61 - 63 (1998)